25 lines
673 B
Java
25 lines
673 B
Java
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package com.thinker.bishi.offer;
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/**
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* @author lzh
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* @apiNote 判断一个字符串中是否只含有相同的子字符串（子串长度>=2）
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*/
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public class CheckSameSubString {
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public static boolean go(String str){
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if(null == str || str.length() <= 2) return false;
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for(int i=0;i<str.length()-2;i++){
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String tmp = str.substring(i,i+2);
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int index = str.indexOf(tmp,i+2);
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if(index != -1){
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return true;
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}
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}
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return false;
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}
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public static void main(String[] args) {
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System.out.println(go("12345623"));
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System.out.println(go("adghjkj"));
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}
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}
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